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author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2013-02-05 18:12:06 +0000 |
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committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2013-02-05 18:12:06 +0000 |
commit | 294014e1585ef5e0c1bf17a9cf79039ce662b64f (patch) | |
tree | 4746ce9105e6572015e5e5cea8951e90aa184c18 /lib/Target | |
parent | d07359667118ab1e889c3b9163b5e6a12414c38b (diff) | |
download | llvm-294014e1585ef5e0c1bf17a9cf79039ce662b64f.tar.gz llvm-294014e1585ef5e0c1bf17a9cf79039ce662b64f.tar.bz2 llvm-294014e1585ef5e0c1bf17a9cf79039ce662b64f.tar.xz |
Move MRI liveouts to MSP430 return instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174411 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target')
-rw-r--r-- | lib/Target/MSP430/MSP430ISelLowering.cpp | 18 | ||||
-rw-r--r-- | lib/Target/MSP430/MSP430InstrInfo.td | 4 |
2 files changed, 9 insertions, 13 deletions
diff --git a/lib/Target/MSP430/MSP430ISelLowering.cpp b/lib/Target/MSP430/MSP430ISelLowering.cpp index 5a156c15c7..09cdf32685 100644 --- a/lib/Target/MSP430/MSP430ISelLowering.cpp +++ b/lib/Target/MSP430/MSP430ISelLowering.cpp @@ -423,15 +423,8 @@ MSP430TargetLowering::LowerReturn(SDValue Chain, // Analize return values. CCInfo.AnalyzeReturn(Outs, RetCC_MSP430); - // If this is the first return lowered for this function, add the regs to the - // liveout set for the function. - if (DAG.getMachineFunction().getRegInfo().liveout_empty()) { - for (unsigned i = 0; i != RVLocs.size(); ++i) - if (RVLocs[i].isRegLoc()) - DAG.getMachineFunction().getRegInfo().addLiveOut(RVLocs[i].getLocReg()); - } - SDValue Flag; + SmallVector<SDValue, 4> RetOps(1, Chain); // Copy the result values into the output registers. for (unsigned i = 0; i != RVLocs.size(); ++i) { @@ -444,16 +437,19 @@ MSP430TargetLowering::LowerReturn(SDValue Chain, // Guarantee that all emitted copies are stuck together, // avoiding something bad. Flag = Chain.getValue(1); + RetOps.push_back(DAG.getRegister(VA.getLocReg(), VA.getLocVT())); } unsigned Opc = (CallConv == CallingConv::MSP430_INTR ? MSP430ISD::RETI_FLAG : MSP430ISD::RET_FLAG); + RetOps[0] = Chain; // Update chain. + + // Add the flag if we have it. if (Flag.getNode()) - return DAG.getNode(Opc, dl, MVT::Other, Chain, Flag); + RetOps.push_back(Flag); - // Return Void - return DAG.getNode(Opc, dl, MVT::Other, Chain); + return DAG.getNode(Opc, dl, MVT::Other, &RetOps[0], RetOps.size()); } /// LowerCCCCallTo - functions arguments are copied from virtual regs to diff --git a/lib/Target/MSP430/MSP430InstrInfo.td b/lib/Target/MSP430/MSP430InstrInfo.td index f003574eda..e45780d058 100644 --- a/lib/Target/MSP430/MSP430InstrInfo.td +++ b/lib/Target/MSP430/MSP430InstrInfo.td @@ -40,9 +40,9 @@ def SDT_MSP430Shift : SDTypeProfile<1, 2, [SDTCisSameAs<0, 1>, // MSP430 Specific Node Definitions. //===----------------------------------------------------------------------===// def MSP430retflag : SDNode<"MSP430ISD::RET_FLAG", SDTNone, - [SDNPHasChain, SDNPOptInGlue]>; + [SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>; def MSP430retiflag : SDNode<"MSP430ISD::RETI_FLAG", SDTNone, - [SDNPHasChain, SDNPOptInGlue]>; + [SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>; def MSP430rra : SDNode<"MSP430ISD::RRA", SDTIntUnaryOp, []>; def MSP430rla : SDNode<"MSP430ISD::RLA", SDTIntUnaryOp, []>; |